2) To do that, simply tap the
“About phone” option in Settings . Then tap “Build number” seven times and you’re done.

3) Now come back to the main Settings menu and you’ll find Developer options
somewhere near the bottom of the list.

★Now that you’re done with that part.

4) Tap the new Developer options menu you just enabled and scroll until you see the following three settings {reffer image below}

■ Note ■
( They may be located within an “ Advanced ” subsection, which varies according to Device Model )

● Window animation scale
● Transition animation scale
● Animator animation scale
By default, each of those
three options is set to “ 1x ” but tapping them and changing them to“.2x or .5x”
It'll dramatically speed up your phone. { You can even change it according to your Requirements/Wish Depending on your Device Speed }

▪ Note ▪
This harmless tweak which
forces the device to speed up all transition animations, and U'll experience a faster and smoother results.
Just Like a Brand New Phone!!